Ive only ridden Gatekeepet, so its my favorite currently by default; however, based off of visuals and how they look, I really do like the look of Parrot Coaster, but Raptor at Gardlanad would still hold itself as my "favorite" simply because of the interaction it has with the themeing elements overall.
Gatekeeper is grand, swooping and has enough elements to keep it interesting. While not intense, it's very ride-able and interesting. Flug is interesting but not very smooth and Swarm isn't interesting and is short.
Sorry to revive a dead topic (though I personally see nothing wrong with it if it's something like this) but I finally got all the ones in the US! Here's my final rankings for all the American ones, but know that regardless of what's where they're all coasters I really enjoy.
Thunderbird- Great theme, launch is a unique way to start the ride, and it flies through that lovely setting with amazing pacing. Not to mention how awesome that barn near miss is. There's no question this is the best one in the States.
X-Flight- The sense of exposure on this ride simply works so well because of its setting. They really worked it in with the paths in the area and the props they added provide some awesome near misses. It's considerably bumpy in the back and I dislike the locked vests but it's still a wonderful ride.
GateKeeper- Not much edge to this one and it feels much slower than the others but I still really like it. Flipping around that high surrounded by water is awesome, that drop is absolutely terrifying that high up, and those keyholes aren't quite the barn or control tower but they're still a lot of fun. This is probably the prettiest of them as well.
Wild Eagle- I hate having to say it's my least favorite because I still absolutely adore this ride. The layout is pretty simple but some of those elements (roll, flat spin) work very well with the wing coaster ride system. But the thing that makes this ride is the view, flying up on top of that mountain overlooking the park with the Smokies on the horizon is an incredible experience, and the unique inspirational take on the theme fits that so well. Only negative things I have to say about this coaster are the locked vests and that horrendous song I can't stand.
1. Thunderbird- This is really close between Thunderbird and Gatekeeper, simply because I've had hit or miss rides on both where the bad rides are really bad (Thunderbird was far too intense in the back and Gatekeeper in the morning has less forces than sitting in a rocking chair), and the good rides are awesome. Thunderbird has the edge because of the launch I think.
2. Gatekeeper- I've had two bad rides on it and one good ride on it. The good ride was incredible and just the right amount of forces! The first drop is amazing and the layout doesn't leave too much to be desired either. The keyholes are fab!
3. The Swarm- Also really close between this and Gatekeeper. I find it very underrated, likely because it is at Thorpe and people love to hate Thorpe for no reason. Just the right amount of forces, a good layout, and a decent amount of theming.
4. Raptor- I don't remember the full experience since it has been ages since I last rode it. I don't remember it being very forceful, but the setting definitely gives it that edge.
5. Wild Eagle- Full of "meh." I actually forgot I rode it until I seen Jarrett's post. It has some forces though which puts it above my last place choice which is...
1. Wild Eagle- thought it was bad in 2012, but I had some amazing rides in 2016. I'm a sucker for a traditional B&M layout.
2. Thunderbird- great ride that is very forceful. Don't like it as much as everyone else seems to though. It gave me a headache and seemed to be almost too forceful for no real reason.
3. Swarm- This is actually a great coaster, just not quite as memorable as these other two. It relies too much on the "cars tight fit" gimmick, but it's very good fun overall.
I've only done 2 - but The Swarm outdoes Flug der Damonen by a fair margain as one is smooth and does interesting things, while the same cannot be said of the other.
Swarm looks better too; arguably the only good thing Thorpe have done since the rot set in.